Basso Capital Management, L.P.
UK short positions the FCA published under this name: 4 companies and 61 disclosures between 14 Nov 2014 and 30 Jan 2018. Each figure is that position as a percentage of the company's issued share capital, not a money value, and percentages are not comparable or summable across companies.
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Positions open when the register closed
No position was still open in the register's final snapshot of 10 Jul 2026: every chain below had already fallen back below the 0.5% publication threshold.
Full disclosure history
Every disclosure the archive holds, grouped by company and ordered oldest first within each chain. A chain begins when the position first crossed 0.5% and ends either at the freeze or at the last disclosure before it fell back below the threshold.
Premier Oil PLC
closed 30 Jan 20188 disclosures · peak 1.34% · first 20 Mar 2017 · last 30 Jan 2018
20 Mar 2017 0.55% · 27 Mar 2017 0.61% · 24 Apr 2017 0.70% · 17 Jul 2017 0.97% · 24 Jul 2017 1.07% · 8 Aug 2017 1.20% · 2 Oct 2017 1.34% · 30 Jan 2018 0.05%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Hansteen Holdings PLC
closed 17 Jul 201730 disclosures · peak 2.82% · first 14 Nov 2014 · last 17 Jul 2017
14 Nov 2014 1.03% · (6 further disclosures) · 11 Mar 2015 2.79% · 13 Mar 2015 2.80% · 9 Apr 2015 2.73% · 14 Apr 2015 2.40% · 22 Apr 2015 2.31% · 19 Jun 2015 2.29% · 22 Jun 2015 2.12% · 17 Jul 2015 1.75% · 28 Aug 2015 1.68% · 8 Sep 2015 1.59% · 11 Sep 2015 1.61% · 16 Nov 2015 1.54% · 15 Dec 2015 1.48% · 12 Feb 2016 1.37% · 25 Apr 2016 1.29% · 26 Jul 2016 1.24% · 23 Aug 2016 1.34% · 18 Oct 2016 1.28% · 6 Feb 2017 1.34% · 13 Feb 2017 1.62% · 24 Apr 2017 1.89% · 22 May 2017 1.92% · 17 Jul 2017 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
THE UNITE GROUP PLC
closed 12 Jun 201713 disclosures · peak 1.33% · first 14 Aug 2015 · last 12 Jun 2017
14 Aug 2015 0.68% · 17 Aug 2015 0.70% · 26 Aug 2015 0.68% · 11 Sep 2015 0.70% · 21 Mar 2016 0.80% · 8 Jun 2016 0.94% · 2 Aug 2016 1.04% · 18 Oct 2016 0.93% · 31 Oct 2016 0.83% · 13 Feb 2017 0.90% · 24 Apr 2017 1.08% · 2 May 2017 1.33% · 12 Jun 2017 0.00%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
JKX Oil & Gas PLC
closed 6 Oct 201510 disclosures · peak 2.62% · first 14 Nov 2014 · last 6 Oct 2015
14 Nov 2014 2.62% · 5 Dec 2014 2.30% · 9 Dec 2014 2.11% · 11 Dec 2014 1.76% · 15 Dec 2014 1.47% · 17 Dec 2014 1.35% · 18 Dec 2014 0.98% · 22 Dec 2014 0.36% · 20 Feb 2015 0.58% · 6 Oct 2015 0.44%
The chain ends here: the register holds no later disclosure, which normally means the position fell back below 0.5%.
Frequently asked questions
- Which UK companies did Basso Capital Management, L.P. short?
- The FCA's named register recorded Basso Capital Management, L.P. against 4 UK companies between 2014 and 2026, across 61 disclosures. No position was still open when the register closed on 10 Jul 2026.
- Is this list current?
- No. It is a frozen archive. The FCA stopped publishing position-holder names on 13 July 2026 and now publishes one anonymous aggregate per company per day, so no new named UK disclosure exists after 10 Jul 2026. Today's UK figures are on each company's own page.
- Was this the whole of Basso Capital Management, L.P.'s UK short book?
- No. Only net short positions of 0.5% or more of a company's issued share capital were published with the holder's name. Smaller positions were reported to the FCA privately and never appeared in the register, so the archive is a floor, not a full book.
Source: the Financial Conduct Authority's daily short positions file, captured on 10 Jul 2026 from fca.org.uk and archived unchanged. Figures are as the FCA published them; this site is not affiliated with the FCA. Nothing here is investment advice.